One hundred fifty years ago the clothes are very expensive items. Cotton or cotton is planted but the hard part is how to separate the seeds and leaves of the cotton seeds. In 1792 Eli Whitney a young inventor who accidentally visited a farm friends. The friend said, that it would be difficult to clean the cotton by hand. He pushed Eli fatherly come to think of making a tool that can process this automatically purge.
A year after that after working hard for 10 days, Whitney finally completed the first engine to clean the cotton. This machine is called cotton cleaning machine. This machine consists of a long grinding by hard wires. Near the mill was there an iron by cracks. If the grinder is playing, then insert the wire into the gap iron cotton, while leaving the seeds and leaves.
Having found a quick way to clean cotton, semain enterprising farmers to plant cotton. In United States cotton cultivation increased to 7 billion pounds of cotton a year.
Source : Kitab Emas (Sejarah-sejarah Penemuan dari Dulu sampai Sekarang)
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